GeometryJohn is painting the side of a building that is 30ft tall. The ladder is at a 68 degree angle with the ground. while standing on the ladder the highest point John can reach is 4 ft above where the ladder touches the wall. What is the shortest ladder John can use to reach the ...
March 13, 2015

Algebra 2I've been stuck on this problem forever. Can someone please explain to me what to do from here? The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 6 inches. If the length must be 1.5 times the height, what should each ...
January 15, 2015

AlgebraA student scores 83 and 91 on her first 2 tests. Write and solve a compound inequality to find the possible values for a 3rd test score that would giver her an average between 85 and 90 inclusive. I know she has to score between 81 & 96 but I'm not sure how to show it the ...
October 4, 2014

AlgebraWhat is a solution for-the inequality y>1.9? -9 -2 2 1.9 My answer is if it has to be greater then 1.9 the answer must be 2.0 from those 4 choices.
October 4, 2014

AlgebraYour correct. I went back to the homework sheet and it looks like that mark but the quality of the sheet is so poor I missed it the 1st time. Thank you
October 4, 2014

Finite MathMalika Agwani starts her career at the age of 25 and makes equal monthly deposits for 35 years into an annuity that earns 6.25% compounded monthly. She plans on retiring the age of 60 and would like to withdraw $3000 monthly for 25 years, bringing the account balance to $0. ...
October 1, 2014

Finite MathLaurie and Craig have purchased a new home. They paid $25,000 down and have a 15-year mortgage for which they pay $980 per month. If the interest is 8.25% compounded monthly, what did the house that Laurie and Craig purchased originally cost?
October 1, 2014

trigA spring is attached to the ceiling and pulled 17 cm down from equilibrium and released. After 3 seconds the amplitude has decreased to 16 cm. The spring oscillates 13 times each second. Assume that the amplitude is decreasing exponentially. Find an equation for the distance, ...
August 17, 2014

chemistryyyThe escape velocity of planet earth is 11.2 km/s. At what temperature would helium atoms be able to escape the earth's gravitational pull? (Note: you're calculating the average speed here, which means roughly 50% of the atoms would escape at any given time)
March 6, 2014

chemistryMy motorcycle has a capacity of 4.5 gal of octane. If I combust all of the octane, what is the volume of CO2 generated by my motorcycle on one tank of gas? Assume that I burn all of the octane into CO2 on a warm day in June, where it is 80 degrees F outside with a barometric ...
March 6, 2014

Please help Matha. Use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine: (cos^4)x (or cos*x to the 4th power) b.Use an appropriate Half- Angle Formula to Find the Exact value of the expression: 1. tan 15(Degrees) 2. cos 3pi/8(Radians)
March 3, 2014

Mathmaticsa. Use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine: (cos^4)x (or cos*x to the 4th power) b.Use an appropriate Half- Angle Formula to Find the Exact value of the expression: 1. tan 15(Degrees) 2. cos 3pi/8(Radians)
March 3, 2014

Chemistry please helpIn lab, I weighed out and found the molarity of 1.108g Na2C2O4 and 1.100g K3Fe(C2O4)3. I titrated an average of 0.0335L of the sodium oxalate solution with KMnO4(potassium permanganate). I then titrated an average of 0.0169L of K3Fe(C2O4)3 X 3H2O with potassium permanganate. I...
February 26, 2014

Lab/ChemistryIn lab, I weighed out and found the molarity of 1.108g Na2C2O4 and 1.100g K3Fe(C2O4)3. I titrated an average of 0.0335L of the sodium oxalate solution with KMnO4(potassium permanganate). I then titrated an average of 0.0169L of K3Fe(C2O4)3 X 3H2O with potassium permanganate. I...
February 26, 2014

chemistryusing the ideal gas law or the combined gas law,why does the air pressure inside the tires on my motorcycle increases during the time I am riding it. Consider what factors are being kept constant and what are changing and how. What if I weigh alot?
February 24, 2014

ccchemistryI do have the added note that the answer to this problem is not the volume of the atmosphere - instead you are determining the volume of the atmsophere displaced by the CO2 generated from my motorcycle exhaust
February 23, 2014

chemistryMy motorcycle has a capacity of 4.5 gal of gasoline. If I combust all of the octane to power my motorcycle, what is the volume of CO2 generated from just my motorcycle on one tank of gas?Assume that I burn all of the gasoline into CO2 on warm day in June, where it is 85 ...
February 23, 2014

chemistry50.0ml of an aqueous solution of 2.50M H3PO4 are mixed with 75.0 ml of an aqueous solution of 4.00 M Ca(OH)2. The resulting precipitate is washed and isolated using filtration. What mass of Ca3(PO4)2 is obtained?
February 9, 2014

chemistryRhodium metal currently costs $1251. per troy ounce (note this is different than a regular ounce! 1 troy ounce = 31.1035g). What would the cost be in dollars to purchase enough gold to form a solid square based pyramid with base dimensions 0.750m by 0.750m and height of 0.500m?
February 2, 2014

chemistryA sample of aluminum metal containing 9.1080 x 10 to the 25 power atoms is drawn into a cylindrical wire with radius r=0.833 mm. how long must the wire be in meters?
February 2, 2014

maththa are of a rectangular wall of a barn is 72 square feet. its length is 10 feet longer than twice its width. find the length and width of the wall of the barn
January 23, 2014

AlgebraSimplify radical terms, including fraction power expressions. Review the expression below and describe how to simplify the expression: ã100 Please help, I just do not know how to describe this.
September 26, 2013

AlgebraThank you so much. Could you help me with one more? It is the same type of question but the problem is different. ã100.
September 25, 2013

AlgebraSimplify radical terms, including fraction power expressions. Review the expression below and describe how to simplify the expression: 16 1/2 Please help, I just do not know how to explain this.
September 25, 2013

Algebra I am not sure how to solve this problem. Could someone please help and explain the proper steps. Determine the annual net cost if the Annual interest of 2.5% is paid if the balance exceeds $750, $8 monthly fee if the account falls below minimum balance $815, account falls ...
August 6, 2013

AlgebraI am not sure how to solve this problem. Could someone please help and explain the proper steps. Annual interest of 2.5% paid if the balance exceeds $750, $8 monthly fee if the account falls below minimum balance $815, account falls below $750 during 4 months.
August 6, 2013

FinanceIf I have $40,000 of pre-tax what are the differences between $1,000 tax credit versus a $1,000 tax deduction for a single taxpayer in the 25% tax bracket?
August 2, 2013

accountingHow do I figure out taxes associated with stock purchased in 2010 for $1000 held for 5 mths. Then sold for $1200 I am in the 28% tax bracket? (I must use the IRS regulations for capital gains in effect in 2010.) I really want to understand how to work this problem out from ...
August 1, 2013

AlgebraI do not the correct steps to solve for this problem. I know I have to first remove the negatives but from there I get confused. This is all the further I could get. Please help. The negative numbers are powers and the problem is a fraction. C-3D-2 C3D2 C-4D-5 C4D5
July 25, 2013

MathHow do I figure out -144/4 to find out if it is a natural number,a whole number, an interger, if it is a rational or irrational number,or a real number? I don't want direct answers i would like to understand how I would go about solving to figure it out on my own. I just ...
July 24, 2013

maththeta is an angle in standard position with a domain of 0 degrees < theta < 350 degrees and cot theta = -(24)/(7). Find all possible values of theta (accurate to 0.1 degree if necessary).
March 30, 2013

MATH116Two forces of magnitudes 60 Newtons and 80 Newtons make an angle of 30 with each other and are applied to an object at the same point. Find the following: 1. the magnitude of the resultant force, and 2. to the nearest degree the angle it makes with the force of 60 Newtons.
February 10, 2013

world civilization 2which of the following pairings is correct? Berthe Mariost-cubist, Emile Zola-abstractionist, Vasily Kandinsky-abstract, gustav flaubert-romanticsm
January 22, 2013

chemAs little as 1.oomg of Arsenic in 1-L of water can kill you. Calculate the following. Assume the density of the solution is 1.00g/cc. a.) How many moles of arsenic in 1 mg? b.) What is the mass percent of the solution? c.) What is the concentration in ppm and ppb? d.) What is ...
December 8, 2012

chemA 0.050 L solution of H2SO4 requires 200.0 mL of 4.0 M NaOH for phenophthalein to turns pink to colorless. What is the molarity of the original H2SO4 solution? I got 4M but my instructor said it's 8M how did he get that? Pls need help figuring it out. Thanks
December 7, 2012

chemistryProcessed cheese must be at a pH of 5.5 to 5.9 to prevent the growth of unwanted microorganisms. If sample of cheeese has an [OH^-]of 7.76*10^-9, what does it mean? Show calculation. I really need help with please. Kindly show me hoe to compute it thanks a lot.
December 5, 2012

mathKatie had a pack of twenty four cards numbered 1- 24. She arranged the cards into 6 piles. No more than 2 piles had the same number of cards the numbers on the cards in each pile added to the same total. What was the total and how could this be solved
October 2, 2012

StatisticsAccording to a survey, 21% of residents in a country over age 25 had earned at least a bachelor's degree. You are performing a study and would like at least 10 people in the study to have earned a bachelor's degree. a)How many residents of the country do you plan t ...
June 24, 2012

mathA student has a mean score of 88 on five tests taken. What score must she obtain on her next test to have a mean (average) score of 80 on all six tests?
April 15, 2012

algebra 2during the first part of a trip, a canoeist travels 47 miles at a certain speed. the canoeist travels 16miles on the second part of the trip at a speed 5mph slower. the total time for the trip is 4 hours. what was the speed on each part of the trip.
April 11, 2011

Pre Calcfrom the top of a 250 ft lighthouse the angle of depression to a ship in the ocean is 18 degrees. how far is the ship from the base of the light house?
March 22, 2011

ISCOMTaylor Inc. manufactures widgets. There is a particular assembly line for Widget X. This assembly line includes the assembly of various raw materials, subassemblies, and packing of the finished widget. Currently, approximately 27% of the total labor time is utilized in walking...
July 13, 2010

Stress Management TechniquesThnx guys i got a 100 on my exams n i just changed the top numbers 16,17,20 to the ones below and it was correct...so trust me its not a lie... Date Graded 02/28/12 Examination 986889RR Grade 100
July 3, 2010

PsychologyExplain proactive and retroactive interference and how you might counteract their effects while studying in order to facilitate maximum absorption of information into long-term memory.
May 22, 2010

collegeTrace the memory system from stimuli into long-term memory. Discuss the features of each step and factors that enhance or impede information flow in each step of the process.
May 22, 2010

Chemistry pls helpI have a chemistry question Please advise how do I prepare 1L of 75% H2SO4 from concentrated H2SO4 (98% of density 1.84g/ml)? Do you have an equation which i can use? Someone gave me the following equation but I do not understand it. Vx1.84x0.98={(1000-V)+ 1.84V}0.75 where V= ...
December 3, 2008

Science, ChemistryI have been told that to prepare 1L of 70% H2SO4 from concentrated sulphuric acid (96% with density 1.84g/ml), I should use the following equation to find out the volume of conc. acid needed (Vml). V x 1.84 x 0.96={(1000-V)+ 1.84V}0.7 i.e. V= 594ml of conc H2SO4. Use 594ml of ...
December 3, 2008

ScienceHow do I prepare 1% H2SO4 from concentrated sulphuric acid (96% with density 1.84g/ml)? Thank you very much for your help.
December 2, 2008

critical thinking2) Which of the following, if true, would best explain the material presented in the table? A) The total value of property owned by Black residents in Washington during the 1830-1860 period was similar to that in other cities during this period. B) Rising standards of living ...
April 13, 2008

critical thinking2) Which of the following, if true, would best explain the material presented in the table? A) The total value of property owned by Black residents in Washington during the 1830-1860 period was similar to that in other cities during this period. B) Rising standards of living ...
April 13, 2008

critical thinking 2) Which of the following, if true, would best explain the material presented in the table? A) The total value of property owned by Black residents in Washington during the 1830-1860 period was similar to that in other cities during this period. B) Rising standards of living ...
April 13, 2008

critical thinkingWhich of the following, if true, provides the strongest support for an archaeologists conclusion that a particular stretch of ancient stone-paved road was part of the Inca road system?
April 13, 2008

accountingwhat accounts would be impacted by a $30,000 cash payment to a $125,000 loan (assuming there is no interest on the loan)?
January 16, 2008

PrimatesWhere can I find information regarding when different types of primates showed up in earth's history? http://www.google.com/search?as_q=primate+evolution&hl=en&num=10&btnG=Google+Search&as_epq=&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=title...
April 20, 2007

unscramble MAUSULTMAUSULT is the word so could some1 plz help me unscramble it thx n advane Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net =) thx u so much writeacher thats the word thx a mil take care the ans is mutuals
March 2, 2007

precalc3x to the third power<24x If this is 3x3 < 24x then divide by 3x on each side x2 < 8 x < sqrt8
October 23, 2006

Eth 125The IAT Test was one measurement. I am glad to see that there is a place that we can all come and help each other!
July 20, 2006